The word "reducement" is a less commonly used term, but it can be effectively replaced with several synonyms. One such alternative is "decrease", which implies a reduction in quantity, size, or intensity. Another synonym is "diminishment", which suggests a decrease in importance or value. For a milder reduction, one can use the term "decline", which indicates a gradual decrease over time. "Lessening" is also a suitable synonym, emphasizing a diminishing effect. Additionally, "cutback" refers to a reduction in expenses or resources. In essence, these synonyms provide a range of words that can be substituted for "reducement" to convey the intended meaning with clarity and precision.